car won't start then with a message "parking brake not available"

Hi, In my case the battery was in process of dying and that was what caused the confusing signals on the dashboard - including one that said "take to dealer at once". When my battery finally died I got no signals on my dashboard. However, the towing company I called was very astute and advised me that I probably just had a dead battery & jumped my car enough for me to drive to Sears and buy a new battery. The problem was 100% fixed with new battery.

Make sure your battery is working on your fob. Also, even if your battery is not working, you should be able to start car by holding the fob touching the starter button (of course you need to be holding down brake at same time). I ended up with a dealer $2000 repair - "starter motor assembly" - but I am not sure why it was done. There were some issues with communication also with repair dept at Lexus dealer. I also have additional/different issues with door panels and dashboards getting super sticky when car left in sun & am getting the run around from service department at dealer. Also, I recently received from Toyota Motor Sales, Inc. a "warranty enhancement notification-ZLG" about issues with "brake actuator assembly" which will expire within 10 years of first use or 150,000 miles. I have to explore that too as I have brake issues. So lots going on with this super luxury car which I do love in spite of its "defects." We should have a club just for Lexus LS460 2008... models.

Thanks for your response. I got my car cranked. Taking to dealer on Monday. I think it is a problem with the parking brake not automatically engaging or disengaging. As to your dash getting sticky, my moms Toyota Avalon had a recall and her dash was replaced. Good luck.